Comparison of Sapphire Radeon RX 6800 video card vs EVGA GeForce GTX 1080 Ti SC Hydro Copper GAMING video card by specifications and benchmarks. Sapphire Radeon RX 6800 runs at 1.800 GHz+ 6 % base clock speed and has 16 GB of GDDR6 memory, while video card EVGA GeForce GTX 1080 Ti SC Hydro Copper GAMING runs at 1.556 GHz+ 5 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.